3 years ago

18÷3(5_4+1) Answer?

Mathematics

2 answers:

Harlamova29_29 [7]3 years ago

8 0

Answer:

Step-by-step explanation:

18 ÷ 3 ( 5 - 4 + 1 )

18 ÷ 3 ( 2 )

18 ÷ 6

= 3

Roman55 [17]3 years ago

7 0

Answer:

36 if you meant a base of 4, or 24 if you meant a subtraction of 4 :))

Step-by-step explanation:

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3 years ago

Prove that an = 4^n + 2(-1)^nis the solution to

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Answer:

See proof below

Step-by-step explanation:

We have to verify that if we substitute $a_n=4^n+2(-1)^n$ in the equation $a_n=3a_{n-1}+4a_{n-2}$ the equality is true.

Let's substitute first in the right hand side:

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Now we use the distributive laws. Also, note that $(-1)^{n-1}=\frac{1}{-1}(-1)^n=(-1)(-1)^{n}$ (this also works when the power is n-2).

$=3(4^{n-1})+6(-1)^{n-1}+4(4^{n-2})+8(-1)^{n-2}$

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3 years ago

18÷3(5_4+1) Answer? ​

18÷3(5_4+1) Answer?